Drain-valve device for hydrants



June 5, 1923.

L. T. BUCKLER DRAIN VALVE DEVICE FOR HYDRANTS Filed Nov. 23 '1920 Patented June 5, 1923.

UNITED srA rica,

LEON T. BUCKLEB, or PHILADELPHIA, rENNsYLvANI'A,Ass1eNoa T GEORGE acnaY,

0F .ELKINs PARK,

PE NsYLVA IA.

DRAIN-VALVE DEVICE roa- HYDRANTSJ.

Application filed November 23, 1920. SeriaINoQ LZGJOO.

' prevent freezing of the-.water as often occurred prior to my invention.

Another object is to make my invention of a simple and durable construction which can be easily manufactured and which can be readily installed. 1

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manner, reference being had to the accompanying drawings in which- I Figure 1 is an elevation, partly in section, showing a fire hydrant having the device of my invention attached thereto,

Figure 2 is an enlarged plan view of the device of my invention, and

Figure 3 is a transverse section taken on the line 33 of Figure 2.

Referring to the drawings, 4 represents a fire hydrant having a depending conduit 5 which is adapted to be positioned in the ground so as to supply water upwardly. through the hydrant. My invention includes a body portion 6 which has an externally screw threaded nipple 7 and a depending tubular extension 8; said tubular extension being screw threaded at 9 to permit a drain plpe 10 to be attached thereto as shown in Figure 1; said drain pipe leading to any sewer connection (not illus-' trated). The body portion 6 has a passage 11 extending therethrough and through the tubular extension 8; said passage leading to the outer end surface 12 of the nipple 7 and being provided with a frusto-conical valve seat 13. The nipple 7 is adapted to be screwed into a hole 14 in the hydrant conduit 5 as clearly shown in Figure 1. IThe nipple 7 has a forwardly projecting lug 15 to which is pivoted at16, an arm 17 having a plate or paddle l8. thereon, the plane of which extends transversely to the direction of movement of the water through the hydrantconduit 5. i 1

A fIUStO-COIIlCdLVLlVG 19, has a- 'projec tion 20 whichis pivoted at 21 to the arm 17 at a position to the rear of the plate 18. The

lower end of the arm 17 has a finger pro- 160131011 22 adapted to engage the front SUI? face 23 of the lug vlfi :so that if the arm 17 attempts to fall downwardly upon the pivot 16, the finger 22will engage the surface 23 of the lug andthereby limit the downward pivotal movement of said arm 17. The valve v19 has a partQ l-which always remains within the passage 11 so that during an upward movement of the arms 17 from the full line dash line position shown in said figure, the valve 19 will always find-its way to the seat 13 and thereby close the passage 11 with respect to the interior of the conduit 5.

During the use of the hydrant, the water position shown in'Figure 3 to the dot-andpassing upwardly through the conduit 5 will Y move the valve 19 into engagement with the seat 13 due to the pressure of the water against the plate 18 and the passage '11 thus being closed will prevent any water from being wasted through the drain pipe 10.

After the water hasbeen turned off from the main inlet valve which ispositioned below the level ofthe device, as is customary in the installation of fire hydrants, the water 7 within the conduit 5 above the; level of the device will run out through the drain passage 11 and pipe 10 "due to the fact that when the pressure of the water iscut off, the plate 18 will fall and the, arm'17g will swing on its'pivot 16 and thereby withdraw the valve 19 from its seat. The valve '19- being open, the water above the device will therefore drain'outof the uppermost portion of the hydrant and in this manner the hydrant is prevented from freezing.

While I have described my invention as taking a particular form, vit will be understood that the various parts of my invention may be changed without departing from.

the spirit thereof, and'hence I do not limit myself to theprecise construction set forth, but consider that I am at liberty to make such changes and alterations as'fairly come within the scope of theappendeol claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is v 1. A drain'device for hydrants including a body portion having a drain passage communicating with the interior of the hydrant water conduit a valve for closing said pas sage in the direction of escape of the water out of the conduit; and means connected to said valve and movable by water pressure passing upwardlythrough said conduit to actuate said valve and close said passage; substantially as described.

2-. A drain device for hydrants including a body portion having a drain passage communicating with the interior of the hydrant water conduit; a valve for closing said passage; and means connected to said valve and movable by water pressure passing through said conduit to actuate said valve and close said passage, said means including a plate of comparatively wide area pivoted to the valve and having a finger projection adapted to engage the body portion and limit the opening of the valve; substantially as described.

3. A drain device for hydrants including a body portion having adrain passage communicatin with the interior of the hydrant water conduit; an outwardly closing valve for closing the drain passage, and means connected with the valve and movable, by water pressure in the conduit, to actuate the valve and close the drain passage, said means including an arm pivoted to the body portion and to the valve, substantially as described.

4. A drain device for hydrants including body portion having a drain passage communicating with the interior of the hydrant water conduit; an outwardly closing valve 

